I sincerely doubt it. To quote
@Clint_L , when I was in high school, we were a bunch of straight 14-year-old white boys playing D&D (not from Nanaimo).
Nowadays? It’s lot more likely that the group will have a girl at the table, or a guy who’s out, or a friend with two dads, or a kid who was born in North Africa.
And then they’re less likely to make rape jokes, or derogatory comments about homosexuals.
It’s pretty easy to say that kids these days are just being performative about what they say. I think that being exposed to different people makes them less likely to reduce others to stereotypes in the first place.